Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simulative Investigation of Ground-Coupled Heat Pump System with Spiral Coil Energy Piles
Combining the heat exchanger and building foundation pile as the energy pile can eliminate the drilling expense and land area requirement of the conventional borehole heat exchanger. For the spiral coil energy pile, the circulation coil pipe is intertwined tightly in spiral shape against the reinforcing steel of a pile. The distinct advantage of spiral coil energy pile is it can offer higher heat transfer efficiency, reduce pipe connection complexity, prevent air chocking and decrease the thermal short-circuit between circulating pipes compared with other configurations. In order to investigate the operation performance of ground-coupled heat pump system with spiral coil energy piles, analytical simulation models of spiral coil energy piles and the entire heat pump system are established. Temperature responses of the circulating water entering/effusing the spiral coil energy piles and the heat pump unit to the short time step building heating/cooling loads are simulated based on the established analytical models. Then, the heat exchange capacity of the spiral coil energy piles is investigated, and the operation performance of the entire system is analysed. The economic superiority of the ground-coupled heat pump system with spiral coil energy piles is found to be obvious compared with traditional air conditioning modes.
Simulative Investigation of Ground-Coupled Heat Pump System with Spiral Coil Energy Piles
Combining the heat exchanger and building foundation pile as the energy pile can eliminate the drilling expense and land area requirement of the conventional borehole heat exchanger. For the spiral coil energy pile, the circulation coil pipe is intertwined tightly in spiral shape against the reinforcing steel of a pile. The distinct advantage of spiral coil energy pile is it can offer higher heat transfer efficiency, reduce pipe connection complexity, prevent air chocking and decrease the thermal short-circuit between circulating pipes compared with other configurations. In order to investigate the operation performance of ground-coupled heat pump system with spiral coil energy piles, analytical simulation models of spiral coil energy piles and the entire heat pump system are established. Temperature responses of the circulating water entering/effusing the spiral coil energy piles and the heat pump unit to the short time step building heating/cooling loads are simulated based on the established analytical models. Then, the heat exchange capacity of the spiral coil energy piles is investigated, and the operation performance of the entire system is analysed. The economic superiority of the ground-coupled heat pump system with spiral coil energy piles is found to be obvious compared with traditional air conditioning modes.
Simulative Investigation of Ground-Coupled Heat Pump System with Spiral Coil Energy Piles
Environ Sci Eng
Wang, Zhaojun (Herausgeber:in) / Zhu, Yingxin (Herausgeber:in) / Wang, Fang (Herausgeber:in) / Wang, Peng (Herausgeber:in) / Shen, Chao (Herausgeber:in) / Liu, Jing (Herausgeber:in) / Man, Yi (Autor:in) / Zhang, Xinyu (Autor:in) / Li, Shuo (Autor:in) / Du, Tiantian (Autor:in)
The International Symposium on Heating, Ventilation and Air Conditioning ; 2019 ; Harbin, China
20.03.2020
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Energy pile , Spiral coil , Ground-coupled heat pump , Simulative investigation Engineering , Building Physics, HVAC , Sustainable Architecture/Green Buildings , Atmospheric Protection/Air Quality Control/Air Pollution , Renewable and Green Energy , Energy Storage , Monitoring/Environmental Analysis , Earth and Environmental Science
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